How do I import data from a spreadsheet (mail merge) using … In Microsoft® Word click on the Mailings tab at the top of the screen.Click Start Mail Merge, then Step by Step Mail Merge Wizard.. Click on Labels and then click on Next:Starting document.. In the Label Options window, make sure that: . Printer Information is set to Page Printers; Tray is set to the Default Tray; Label Vendor is set to Avery US Letter; Then click on your product number …